Prove... this is as far as i got working from LHS now i'm stuck..
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You must know that . This identity is worth being very familiar with. So you want to prove (I just multiplied both sides of your identity by ). Now just apply the identity and you're done!
Originally Posted by windir Prove... this is as far as i got working from LHS now i'm stuck.. !!!! XD What I suggest you do with the LHS is the following: In the process, invoke one of the pythagorean identities... Can you take it from here?
ooooooooooohhh, duh! thanks man!
Originally Posted by windir Prove... [snip] Also discussed here: http://www.mathhelpforum.com/math-he...589-proof.html Thread closed.
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